Interchangeable draw-works girt



Dec. 23, 1930. w' D. SAWYER 1,786,089-

INTERCHANGEABLE DRAW WORKS GIRT Filed April 8. 1929 2 Sheets-Sheet 1 ATTOR/Vfy W. D. SAWYER INTERGHANGEABLE DRAW WORKS 'GIRT Dec. 23, 1930.

Filed April 8. 1929 2 Sheets-Sheet 2 Patented Dec. 23, 1930 UNITED STATES PATENT eFricE W'ILIERED SAWYER, OE LONG BEACH, CALIFORNIA, ASSIGNOE TOEMSCO DERRICK 'z. EQUIPMENT COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA Application filed. April 8,

My invention relates to derricks, and particularly to a means for connecting a girt'to the legs of a derrick. r

In the following description, I shall refer to my invention as applied to the drawworks girt of a derrick used in the oil-producing industry. I-wish it to be understood, however, that my invention may be applied to various types of derricks and need not be limited toa draw-works-girt, In fact, my invention may be utilized for securing any type of girt to legs or postsof a derrick.

My invention consists of an intermediate member, or means adapted to be secured to the leg'or equivalent part of a derrick. This intermediate member provides aflat face,

which is preferably inclined at a slight angle to the true vertical, The girt which is to be secured to the derrick engages the flat face of the intermediate member. Clamp means is provided for clamping the girtagainst the flat'face. The clamp means is designed so that it may engage the girt at different places. This type of clamp means is provided so that if the derrick legs are closer together or farther apart, theclamp means is still capable of performing its function.

The invention also provides a jack for moving the 'girt along the flat face of the intermediate member, in order that the height of the girt may be adjustable. The flat face of the intermediate member and the jack are placed in planes which are outside the-legs or members to which the girt is secured by the parts described. This is essential in utilizing a girt which is designed for use on various types of derricks. The intermediate member is made adjustable sothat the flat face may be moved horizontally toward or away from the leg to provide forhorizontal adjustment of the girt, and is made adjustable so that the flat face may be moved in an angular relation to the surface of the leg, either so as to increase or decrease the angle of the flat face of the intermediate member relative to a true vertical. This willprovide for an angular adjustment of the girt to fitan a'ngularity of post. 7 Having pointed out the essential features of my invention I will now refer more partic- INTERGHANGEABLE DRAW-WORKS GIRT 1929. are No. 353,398.

ularly to the requirements of a girt attaching means for use in the oil-producing industry, and I will also particularly referto the va- 1pious objects and advantages of the inven- In the foregoing brief description of my nvention, I have described my invention in 1ts entirety. It should be understood, however, that various features and constructions are capable of separate use; therefore, I do not wish to be limited to a structure as outllned above which includes each and every element of the combinationwhich my invention provides. i

In the oil-producing industry, draw-works, the posts therefor, and the girts are usually purchased as a unit separate from the derrick; in other words, the derrick is purchased and then the various units are purchased for the derrick. For the sake of economy it is desirable to use the units on different derricks. Due to the fact that derricks are of different sizes and the legs thereof are spaced different distances apart, the draw-works girts are not interchangeable. Consequently, it is necessary to buy a separate draw-works girt for each derrick of a different size.

One of the objects of my invention is to provide a girt which has certain features of design which permit it to be adapted to different sizes of derricks.

In order to accomplish this object of my invention it has been necessary to depart from the somewhat standard design of girt, and it has further been necessary to provide novel forms ofattaching'parts;

My invention, therefore, comprehends the various details of construction.

It is an object of this invention to provide a girt having a flat face adapted to be clamped against the'flat face of the intermediate member which is attached to the leg of the derrick. 7

There are many makes of draw-works which are supplied to the oil-drilling industry, these draw-works differing in design. It is desirable in view of this to provide a girt which maybe adjusted vertically, in

order that the various makes of draw-works may be readily installed.

ne of the objects of my invention is to provide a girt and connecting means in which the girt is adjustable along the flat face of the intermediate member.

Another object of the invention is to provide in a combination of this nature a jack for moving the girt along the flat face.

A draw-works post is required by A. P. I. specification to have a certain angular relation with the base channel of the derrick. The legs of different derricks are arranged at varying angles with the base channel and different. from the post angles. For this reason it is necessary to move the girt toward or away from the legs in order to comply with A. F. I. requirements.

It is an object of this invention to provide a girt and connecting means which includes an intermediate member placed between. the leg of the derrick and the girt, this intermediate member being adjustable or replaceable. By adjusting or replacing the intermediate member it is possible to space the girt the desired distance from the derrick leg and consequently to readily comply with the specifications.

At the present time in the oil fields, drawworks equipment is not completely standardized and any one tower may have installed in it during the drilling of successive wells, draw-works posts which vary widely in the angular relation with the base channel. For this reason it is necessary to move the girt in an angular relation with the legs of the tower in'order to fit against the variety of drawworks posts.

It is a further object of this invention to provide a girt and connecting means which include an intermediate member placed be tween the legs of the derrick and the girt, this intermediate member being adjustable or replaceable so that the angular relation of the contact surface of the girt and intermediate member with the derrick leg may be altered as desired to comply with the requirements of the drawworks post.

Further objects and advantages will be made apparent in the following description, in which reference is had to the accompanying drawings. In the drawings,

Fig. 1 is an elevational view of a portion of a derrick. This view is taken in such a direction that the axis of the girt extends in a plane perpendicular to the surface of the drawing.

Fig. 2 is a view arrow 2 of Fig. 1.

Fig. 3 is an enlarged fragmentary section of the draw-works girt and means for connecting it in place, this view being taken in the same direction as Fig. 1.

Fig. 4 is a fragmentary view taken as indicated by the arrow 4 of Fig. 3.

taken as indicated by the Fig. 5 is a plan view of Figs. 3 and 4:, taken on the lines 55 thereof.

Fig. 6 is an elevational view of a second form of my invention, this view showing the end of the draw-works girt and the means for securing it to the legs of the derrick.

Fig. 7 is a view taken as indicated by the arrow 7 of Fig. 6.

Fig. 8 is a plan view taken as indicated by the arrows S8 of Figs. 6 and 7.

I will now describe the form of my invention illustrated in Figs. 1 t inclusive.

Referring first to Figs. 1 and 2, the numeral 11 represents one leg of a derrick. The derrick, according to standard practice, is provided with four such legs. Extending between the lower ends of the legs 11 are base channels 12. The legs are connected together and rigidified by various interconnecting braces indicated by the numerals 14. Each leg 11, as shown best in the plan view of Fig. 5, is in the form of an angle, the corner of the angle being disposed outwardly so as to form the corner of the derrick.

The numeral 16 represents a girt which in the present embodiment of my invention is a draw-works girt. This girt is formed of a vertically disposed inner channel 17, upper and. lower horizontal channels 18 connected together by rivets 16, and outer cross-braces 19. It will be noted that the channels 17 and 18 form a channel-shaped girt, the Web of the channel-shaped girt being formed by the channel 17 and the flanges by the channels 18. The girt 16 is designed so that it has an inner flush face 20. This face in the preferred form of the invention continues the entire length of the girt and has no offsets therefrom. However, to operate properly in the combination which I am describing, the faces 20 need only be fiat at the ends thereof will be pointed out hereinafter.

One flange 22 of the leg 11 is provided with a series of openings 23 which are equally spaced. These openings are arranged along the line AA of Fig. 3. Adapted to be secured to the flange 22 of the leg 11 is an intermediate member 24.

The interm diate member is preferably in the form of an angle, as shown, having a leg 25 adapted to engage the flange and having a leg 26 which provides a flat or contacting face 27 having a slight angular inclination to the true vertical. In the form of the member shown, the leg 25 is provided with three rows of openings 29, 30, and 31. The openings 29 and 31 are arranged in horizontal pairs and the openings 30 are offset therefrom. The three series of openings 29, 30. and 31, however, are spaced in three separate rows, which extend at a small angular inclination to the line Ai of Fig. 3. The reason for offsetting the openings in horizontal planes is that if the openings were placed in horizontal rows-there would be insufficient metal between the openings to provide proper strength. The openings forming the various rows are spaced apart'the samedistances as the openings 23 formed in the flange 22 of the leg 11. For the purpose of securing the intermediate member to the leg 11 I provide a plurality of bolts 33. These bolts 33 extend through the openings 23 in the flange 22 and through either of the rows of openings 29, 30, or 31, as desired. It will be seen that by placing the intermediate member so that different openings 29, 30, or 31 align with the openings 23, the vertical face 27 will be spaced a different horizontal distance from the leg 11 and will also be given a varying inclination to the vertical. This is for the purpose of accommodating it to Various derricks and drawworks posts. It should be understood that my invention is not limited to the particular arrangement of openings shown, as the member 24 may have any number of rows of openings relatively spaced and inclined to meet the needs of various derricks and drawworks posts.

As illustrated, the flush face720 of the girt 16 is adapted to engage the vertical face 27 of the intermediate member 24. For the purpose of clamping these parts together, as explained, my invention provides a clamp means which consists of the following construction:

The'leg 26 of the intermediate member 24 is provided with a row of equally spaced openings 35. Adapted to extend through two of these openings 35. are bolts 36. Threaded ends 37 of the bolts 36 extend through a clamp plate 38. The clamp plate 38 is adapted to engage a rear face provided by the outer faces of vertically extending flanges 39 of the upper and lower channels 18. Threaded onto the ends of the bolts 36 are nuts 40, which'when screwed into place rigidly clamp the girt 16 against the vertical face 27 of the intermediate member 24.

In order to accomplish a vertical adjustment of the girt 16, I provide a jack which I will now describe. Formed in upper and lower edge flanges 42 of the vertical channel 17 of the girt 16 is a series of vertically aligned jack-screw openings 43. The jackscrew openings 43 are spaced definite distances apart and are so spaced that when used on derricks of different sizes the openings will be suitably positioned with respect to the derrick leg' to receive a jack-screw.

Secured to a flange 45 of the leg 11, prefererably in a plane slightly below the interme diate member 24, is a bracket 45. The bracket 45 has a horizontal web 46 through a slot 46a of which a jack-screw 47 is extended. Ahead 48 of the jack-screw 47 engages the lower face of the web 46 and a nut 49 is screwed onto the jack-screw 47 to engage the upper face of the web 46. This securing means rigidly attaches the jack-screw 47 to the bracket 45.

The jack-screw 47, illustrated, extends upward through an aligned pair of jackscrew openings 43. Arranged on the jackscrw 47 below the lower flange 42 of the vertical channel 17 is a j aclenut 51 and arranged on the j ack-screw 47 above the upper flange 42 of the vertical channel 17 is a hold-down nut 52. 7 r

The vertical position of the girt 1 6 is regulated before the clamp means is brought into action by advancing the hold-down nut 52 upward on the jack-screw 47 and thereafter advancing the jack-nut 51 upward or downward until the girt is in proper position. Thereafter the clamp means is brought into operation and the parts rigidly clamped together.

I will now describe the manner of making the various adjustments of the invention. Before doing so, however, I will point out that the drawings illustrate only one end of the girt 16 and the means for supporting that particular end. It should be understood that there is a similar construction provided at the opposite end of the girt and that during the adjustment thereof the parts at the opposite end of the girt must be adjusted.

For the purpose of explaining the adjustments we will assume that the parts have been assembled and that it is found necessary to make certain adjustments. In the first place, I will describe the manner in which the girt is moved horizontally with respect to the leg of the derrick and its angularity changed with respect to the truevertical. This is accomplished by removing the bolts 33 and aligning either the row of openings 29 or the row of openings 31 with the openings 23 of the leg 11, and thereafter replacing the bolts. It will be seen that this adjustment has the effect of moving the face 27 either toward or awayfrom the derrick leg and of changing the inclination thereof to the vertical. Due to the fact that the girt is clamped against the face 27 the girt is moved horizontally. It will be seen that since the jackscrew 47 is connected to the girt when an adjustment is made it is necessary for this jackscrew to move horizontally with the grit. It is therefore necessary to loosen the nut 49 so that the jack-screw may move in the slot 46a formed in the web 46. It will be seen that the slot 46a has its major axis in a plane parallel to the movement of the girt which allows for the horizontal movement.

If desired, the same adjustability may be accomplished by replacing the intermediate member 24 with another intermediate member 24 having a row of slots arranged in a different relative position from the row of slots 30 in the intermediate member shown. If such a substitution of intermediate members were contemplated it would then be possible to provide each intermediate member with rows of openings 29, 30, or 31 arranged in different relative positions from those in tle other intermediate members, and thus provide various combinations of horizontal spaciiu and inclination to the vertical.

The vertical adjustment of the girt is accomplish d by loosening the nuts L0 on the bolts 36 and then operating the jack to raise or lower the girt. This is accomplished by advan -ing the hold-down nut upward to release the clamping action and thereafter advancing the jaclonut 51 upward or downward to raise or lower the girt as desired. If the girt is to be raised a considerable distance, it may be necessary to remove the bolts 36 and extend them thror gh different openings 35 in the flange 26 of the intermediate member 2a. hen the girt has been properly positioned the holddown nut is advanced downward and brought into pressural contact with the upper flange 42 in order that the girt may be clamped to the jack. After this operation the nuts e0 are advanced onto the bolts 36 so that the clamp means is brought into operation to rigidly clamp the girt against the intermediate memher.

The design of adjusting; means for the girt and the 'irt itself is such as to render one gift 16 adaptable for use on various sizes of derriclts. As previously explained, the snacing' of the legs of the derrick varies in dinerent sizes of dcrriclrs. In the present invention the face 27 and the jack are arranged in planes outside the plane of the outer faces of the pair of legs 11 to which the girt is secured. The plane of the outer edge of the leg is indicated by the broken line B'B of Fig. 3. The clamp means described surrounds the end of the girt and therefore it is only necessary that the outer edge of the girt provide flat surface which may be engaged by the clamp member or angle 38. The clamp means is adapted, therefore, to clamp either the extreme end of the grirt or any adjacent portions so long as it is fiat.

The jacks crew i? is arranged so that it may be extended through one of the vertical pairs of jack-screw openings 43. It will be seen that on smalle derriclrs the jaclf-screw 47 is extended through pair of jacloscrew openings 43 nearer the middle part of the grirt. The grirt itself is provided with a flush face 90 so that the air; does not projectin ward any point between the legs, and, therefore, there will. be no shoulders which would prevent the girt from being used on smaller derricks.

In this preferred form of my invention, it say be advisable to provide some sort of coin t-ralizing means to assist in centralizing the girt when the jack-screw and other parts are being attached and to serve as a stop to pr vent end movement of the girt under heavy loads. In my invention, I may provide the flush face 20 of the girt with a series of spaced stop blocks 55. The stop blocks are arranged so that on the different sizes of derricks one of the stop blocks will engage the intermediate member 24, thus holding the girt in position so that the jack-screw 4'? will align with one of the pairs of jack-screw o 'ienings 43.

In Figs. (5, 7, and 8 1 illustrate a second form of my invention which closely resembles the form of the invention just described. For that reason the numerals applied to Figs. 1 to 5 inclusive will be identical, except where there are changes in construction and such changes I will now describe.

The end of the girt 16 is cut out, as indicated o W in 8, so that the girt is narrower. The end portions are provided with angles having vertical legs 61 which are vertically aligned, as illustrated in Fig. 6. Tlze clamp means in this form of the invention is designed so that the clamp bolts 36 extend through upper and lower vertical slots The threaded ends of the bolts 36 extend through the clamp angle 38 and these parts are attached together by the nuts 40.

It will be seen that in this form of the invention the bolts 36 extend between the upper and lower channels 18 rather than on the outside of them, as in the form of my invention first described. In order that the girt may be moved vertically it is necessary to provide slots 62. These slots 62 are slightly longer than the spaces between the openings 35 in the intermediate member 24 so that if it is necessary to move the girt a vertical distance greater than the length of the slots, the bolts 36 may be removed and extended through other openings 35 as will be obvious.

In this second form of the invention there are rows of jack-screw openings 4", and in addition to these there must be rows of vertically aligned slots 62 (Fig. 8). This is necessary in view of the fact that the bolts 36 extend through the girl; rather than on 0pposite sides of it.

The features of construction are otherwise identical and the manner in which the various adjustments are made are the same as in the first form of my invention.

I claim as my invention 1. In a girt construction. the combination of: a leg; a g rt adapted to be secured to said leg; an intermediate member secured to said leg, said intermediate member providing a contacting face; clamp means for clamping: said girt a 'ainst said cont-acting face; and jack means positioned adjacent said leg, said jack means being associated with said Lj rt so as to raise or lower same when said jack means is operated.

2. In a girt construction, the combination of: a leg; a girt adapted to be secured to said (ID a leg; an intermediate member secured to said leg, said intermediate member providing a contacting face, and said intermediate member being adjustable relative to said leg so that said contacting face may be moved toward or from said leg; clamp means for clamping said girt against said contacting face; and jack means positioned adjacent said leg, said jack means being associated with said girt so as to raise or lower same when said jack means is operated.

3. In a girt construction, the combination of: a leg; a girt adapted to be secured to said leg; an intermediate member secured to'said leg, said intermediate member providing a contacting face, and said intermediate member being adjustable relative to said leg so that said contacting face may be moved toward or from said leg, and said adjustability providing that in said movement toward or from said leg the angular relationship between the contacting face and leg be increased or decreased; clamp means for clamping said girt against said contacting face; and ack means positioned adjacent said leg, said jack means being associated with said girt so as to raise or lower same when said jack means is operated.

4:. In a girt construction, the combination n of: a leg; a girt adapted to be secured to said leg, said girt having a flush face; an intermediate member secured to said leg, said in termediate member providing a contacting face; clamp means for clamping said. flush face of said girt against said contacting face; nd ack means positioned adjacent said leg, said jack means being associated with said girt so as to raise or lower same when said jack means is operated.

5. In a girt construction, the combination of: a leg; a girt adapted to be secured to said leg, said girt having a flush face; an intermediate member secured to said leg, said intermediate member providing a contacting face, and said intermediate member being adjustable relative to said leg so that said contacting face may be moved toward or from said leg; clamp means for clamping said flush face of said girt against said contacting face; and jack means positioned adjacent said leg, said jack means being associated with said girt so as to raise or lower same when said jack means is operated.

6. In a girt construction, the combination of: a leg; a girt adapted to be secured to said leg, said girt having a-fiush face; an intermediate member secured to said leg, said intermediate member providing a contacting face, and said intermediate member being adjustable relative to said leg so that said contacting face may be moved toward or from said leg, and said adjustability providing that in said movementtoward or from said leg the angular relationship between theconta'cting face and leg be increased or decreased; clamp means for clamping said flush face of said girt against said contacting face; and jack means positioned adjacent said leg, saidjack means being associated with said girt so as to raise or lower same when said ack means isoperated.

. I. In a girtconstruction, the combination of: a leg; a girt adapted to be secured to said leg, said girt having a flush face and a rear face; an intermediate; member secured to said leg, said intermediate memberproviding a contacting face; clamp means for clamping said flush face of said girt against said contacting face of said intermediate member, said clamp means including a clampplate adapted to engage said rear face and a bolt engaging said intermediate member and said clamp plate; and jack means positioned adjacent said leg, said jack means being associated with said girt so as to raise or lower same when said jack means is operated.

8. In a girt construction, the combination of: a leg; a girt adapted to be secured to said leg, said girt having a flush face and a rear face; an intermediate member secured to said leg, said intermediate member providing a contact-ing face, and saidintermediate member being adjustable relative to said leg so that said contacting face may be moved toward or from said leg; clamp means for clamping said flush face of said girt against said contacting face of said intermediate member, said clamp means including a clamp plate adapted to engage said rear face and a. bolt engaging said intermediate member and said clamp plate; and jack means positioned adj acent-said leg, said jack means be ing associated with said girt so as to raise or lower same when said jack means is operated. 1

, 9. In a girtconstruction, the combination of: a leg; a girt adapted to be secured to said leg, said girt having a' flush face and a rear face; an intermediate member secured to said leg, said intermediate member providing a contacting face, and said intermediate member being adjustable relative to said leg'so that said contacting face may be moved toward or from said leg; and said adjustability providing that in said movement toward or from said leg the angular relationship between the contacting face and leg be increased or decreased; clamp means for clamping said flush face of said girt against said contacting face of said intermediate member, said clamp means including a clamp plate adapted to .en-:

gage said rear face and a bolt engaging said intermediate member and said clamp plate; and ack-means positloned ad acent said leg,

said jack means being associated with saidgirt so as to raise or lower same when said ack means is operated. V

10. In a girtconstruction, the combination of a leg; an intermediate member adapted to be secured to said leg andproviding a contacting face; means for securing said intermediate member to said leg so that said contacting face may be moved toward or from said leg; and a girt secured to said contacting face.

11. In a girt construction, the combination of a leg; an intermediate member adapted to be secured to said leg and providing a contacting face; means for securing said intermediate member to said leg so that the angular relationship between said contacting face and said leg may be increased or decreased; and a girt secured to said contacting face.

12. In a girt construction, the combination of: a leg providing a row of openings therein; an intermediate member providing a contacting face and a plurality of openings arranged in angularly disposed rows; and clamping means extending through said row of openings in said leg and one of said rows of openings in said intermediate member so as to adj ustably secure said contacting face in varying angular relationship to said leg; and a girt secured to said contacting face.

13. In a girt construction, the combination of: a leg; an intermediate member providing primary and secondary angled faces; means for adjustably securing said primary face to said leg so that the position of said secondary face relative to said leg may be varied; and a girt secured to said secondary face.

14. As an article of manufacture, a fabricated girt, comprising: a primary member having an external attachment face; and secondary members secured to said primary member and forming upper and lower walls of said girt, said upper and lower walls providing jack screw openings therein.

15. As an article of manufacture, a fabricated girt, comprising: a primary member having an external attachment face; secondary members secured to said primary member and forming upper and lower walls of said girt, said upper and lower walls providing jack screw openings therein; and stops on said attachment face, said stops having a definite spaced relationship to said jack screw openings.

16. As an article of manufacture, a fabricated girt, comprising: a primary member having an external attachment face; and secondary members secured to said primary member and having edges defining a rear face parallel to said attachment face, said secondary members constituting upper and lower walls of said girt and providing jack screw openings in said walls.

17. As an article of manufacture, a fabricated girt, comprising: a primary member having an external attachment face; secondary members secured to said primary member and having edges defining a rear face parallel to said attachment face, said secondary members constituting upper and lower walls of said girt and providing jack screw openings in said walls; and stops on said attachment 

